Machine for inserting metallic fastenings.



No. 853,742. PATENTBD MAY 14, 1907. c. H. 'SMITH. j

, MACHINE FOR INSERTING METALLIC FASTENINGS.

APPLICATION FILED AUG. 13:1900.

1 1n: NORRIS PETERS ca. wnsnmaran, n. c.

NH s

earns PATENT rrrcn.

CHARLES H. SMITH, 'OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO UNITEDSHOE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A

CORPORATION OF NEW JERSEY.

MACHINE FOR INSERTING METALLIC FA STENlNGS.

Application filed August 13,1900. Serial No, 26,692.

To all whom it may concern:

Be it known that I, CHARLESH. SMITH, a citizen of the United States,residing at New Bedford, county of Bristol, State of Massachusetts, haveinvented an Improvement in Machines for Inserting Metallic Fastenings,of which the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

This invention relates to machines for inserting fastenings or slugs,both of which are hereinafter for convenience included by the termfastenings, and the object of the invention is to provide mechanismwhereby fastenings may be driven into the work in a plurality of rows,or at different distances from the edge of the work, the fasteningsbeing driven preferably in said different rows alternately, thefastenings of one row being staggered with relation to the fastenings ofanother row.

The invention is particularly intended for use on machines for insertingfastenings in shoes.

The shoe to be operated upon is mounted on a suitable horn or supportand is advanced to present successive portions to the fasteninginserting mechanism by means which in addition to its forward feedingmovements also has movements transversely of the line of feed wherebythe f astenings may be driven intermittently in difierent rows. Inconnection with this mechanism there is also preferably employed meansfor determining the row in which the fastening first driven shall beinserted and this means is preferably a manually controlled devicewhereby the operator may cause the first fastening to be inserted ineither row as desired.

Figure 1 in side elevation represents a suf ficient portion of a machineof well known construction for inserting metallic f astenings, with myimprovements applied thereto, to enable my invention to be understood,said figure also showing -a shoe in position to have its heel operatedon. Fig. 2 is a section below the dotted line as of Fig. 1. Fig. 3represents the pattern cam detached. Fig. 4 is an enlarged detail of theend portion of the feeding device, and Fig. 5 is a detail showing theend of the pawl with its connected pin.

Specification of Letters Patent.

Referring to the drawing, illustrating a preferred form of my inventionapplied to a well known type of machine, A represents a column formingpart of the framework of a machine for inserting fastenings, A a crankpin or, it may be, an eccentric on a 'shaft A sustained in said columnand driven in any usual or suitable way; 4 represents part of a collarwhich may surround a vertica lly reciprocating working head E, itcontaining, it will be supposed in practice suitable wire feedinggrippers to engage and feed the fastening material; B is a link jointedat 46 between its ends to said collar, said link being also connectedwith said crank pin and with a lever B having an attached wedge or camshaped leg B the cam portion of which, in the descent of the leg, actson the rear end of a work-positioning and feeding device B and forces itoutwardly to insure its firm engagement with the work preparatory to thedriving of the next fastening and its subsequent lateral feedingmovement. In the rise of the leg B after the fastening has been drivenand the feeding movement of the device B has taken place, the camportion of the leg releases the outward pressure of the feeding deviceand permits it to be slightlyretracted by the tension of a spring a tofacilitate the return, lateral movement of the feeding device, all aswill be hereinafter more fully explained. The lever B.is pivoted upon afeed actuating lever or device C, free to be turned on a stud C shown asprojecting from the column A, the lower end of said lever C beingprovided with an incline 0, see Fig. 2, which in the movement of thelever C in the direction opposite the arrow upon it in Fig. 1, meets theinclined face 0* on the back of a dog 0, pivoted at 0 and moves said dogso that its inner face resting against the side of the feeding device Bwill move the same laterally in the direction of the arrow thereon,

Fig. 2, to feed the shoe over the horn D, a

is raised to permit the feeding device to re- Patented. May 14, 1907. V

turn to its normal or starting position. The return movement of thefeeding device is effected by the spring a which, to this end, isconnected with the feeding device and with an arm extended from the sideof the leg B thus occupying a diagonal position so as to move thefeeding device both backwardly against the thin portion of the leg B andlaterally against the stop 0 into its normal or starting position. Thestop 0 may be suitably adjusted to vary the lateral position to whichthe feeding device is returned and thereby vary the amount of feedingmovement imparted to the work and determine the spacing of thefastenings.

The working head referred to is shown fully in United States Patent No.325,274, September 1, 1885, the levers B and C, substantially in UnitedStates Patent No. 346,129, dated July 27, 1886, and the leg 13 andfeeding device in United States Patent No. 447,358, dated March 3, 1891,that patent also showing a horn, a driver bar and driver. Said patentNo. 447,358 also shows feeding means for feeding fastening materialwhich may be employed instead of the mechanism provided for this purposein Patent, No. 325,274. Instead of the particular actuating means hereinrepresented for moving the feeding device forwardly to engage thematerial and then laterally to feed the material and which then retiresfrom engagement with the material preparatory to another feeding action,I may employ any other usual or suitable devices.

The inner end of the feeding device B enters loosely a guide block a,having an extension a. which enters and is free to turn in a bearing ina plate a a lug 2 crossing the feeding device, at its upper side. Thespring a, connected with the feeding device B and with the leg Bacts'normally to hold the feeding device up against said lug and keepthe rear end of the feeding device against the cam face of the member 43of the leg, as fully explained in said Letters Patent No. 447,358. Asecond spring a, is connected at one end with said leg and at its otherend with an adjusting device a shown as a screw threaded rod extendedthrough a tubular part of a bar a able nuts 4 5 by which to change theposition of the screw and alter the tension of said spring a it actingto hold the leg and feeding device normally away from a pattern camhereinafter referred to.

The lever B has an attached pawl or actuator 5, herein represented asmade in two parts and. united adjustably by a set screw 7), to therebyenable the length of the pawl to be correctly adjusted to co-actproperly with the teeth (1 of a pattern cam D, shown detached in Fig. 3,said cam having two acting faces (1, shown as laterally projecting lugson the face of the cam, and two spaces (2 bef will secure the shaftf inplace, and it will and having applied to it suittween said. faces, saidcam being mounted rotatively on a stud screw (1, held in a suitablestand 18 made adjustable on the lixed bar a, by or through a suitablenut Hl'applied to the threaded stud 20 connected with said stand andextended through a slot 21 in the bar.

Suitable tubular bushings 22 are interposed between the rear side of thebar a and the plate (L2, said bar and plate being con nected by studscrews 10 with a suitable projection as 23, forming preferably a part ofthe framework A.

The leg B has two branches 43 and 44, and the branch 44 is passedthrough a hole in a follower f, represented as of loop form, one end ofthe follower occupying a position to contact at times with the actingfaces (1 of the pattern cam D, and at other times to enter the space dthereof. The followerfembraces an eccentric-stud 5, extended from oneend of a shaft/' having connected with it a suitable hand wheel ordevice f, by which to turn said shaft and cause the stud 5 to occupy anydesired. position, said stud acting as a stop to arrest sooner or laterthe movements of the follower to the left, to thereby determine thedistance from the edge of the heel for the inner row of nails, see Fig.2.

\Vhen the follower meets one of the faces (1 of the pattern cam the legB is guided in one plane and at such time the fastening is driven in theouter row of fastenings, but when the pattern cam occupies such positionthat the follower enters a space (I thereof, then said follower isarrested by the stud 5 and the leg B is then capable of being moved in adifferent plane at which time the fastening will be driven in the innerrow.

From the foregoing description it will be understood that the eccentricstud 5 on the shaftf constitutes a means for determining the distanceapart of the different rows of fastenings and the distance apart havingbeen determined by adjusting the stud 5 into the desired position, theoperator by a set screw be retained in such position so long as it isdesired. to continue the driving of rows of fastenings at that distanceapart.

Tle follower has extended baclnvardly from one side of its rear end, seeFi 2, a rod 12 which enters a bore in a block 13 pivoted at 14 in thestand 18. The rod is extended through a spring 15 which acts to hold thefollower against the leg B and to prevent any loose motion between saidparts. The leg B" is acted upon by the spring (1 before described,which, in co operation with the spring 15, tends to hold the followernormally out of the spaces (i of the pattern cam so that said cam may beturned by its operating pawl I). The extent of the forward movement ofthe follower and connected parts, un-

I d of the pattern cam by the springs andv der the influence of thesprings, is limited by a stop 16 shown as a pin extending from the rod12 to abut against the block 13.

When the pattern cam is positioned to present a lug d in the rear of thefollower said lug will constitute an abutment for the fol lower and thefeeding device and the work will be supported at the maximum distanceoutward from the machine for a fastening to be inserted in the outerrow, as shown in Fig. 2. When, however, the pattern cam is turned topresent a space (i in the rear of the follower the feeding device may bepressed inwardly or to the left, viewing Figs. 1 and 2, by the work heldagainst it in opposition to the springs 15 and (1*, thus forcing thefollower into the space d as far as the stop 5 will permit. The feedingdevice will then support the Work so pressed against it for a fasteningto be inserted in the inner row of fastenings, as shown in Fig. 2. Atthe next operation of the machine the pattern cam will be turned anotherstep to put a lug d in the rear of the follower, said follower having inthe meantime been moved out of the space a or, if the workman, byholding the work firmly against the feeding device, prevents thefollower from being so moved by the springs, said follower will bepositively forced out of the space by the engagement of the lug d withthe beveled end f X of the follower, see Fig. 3. The lugs 61,co-Operating with the beveled face X of the follower, constitutepositive means for moving the feeding device forwardly whenever for anyreason the springs fail to move said device.

In Figs. 1 and 2 the actuating lever C for moving the feeding device isshown as occupying the position it assumed when it completed itsmovement to effect. the movement of the feeding device, for moving thestock on thehorn after a fastening was inserted in the outer row offastenings, the stock being unclamped while it is being fed.

1n the operation of the machine the feeding device having been moved tofeed. the shoe, the shaft A in its further rotation (from the positionshown in Fig. 1) acts to depress the link B and the collar 4 connectedtherewith and surrounding the working head referred to, turning thelever B in a direction to lift the leg B and cause the pawl b, carriedthereby, to rise and turn the pattern cam, the lifting of the leg Bbringing the thin lower end of the member or cam portion 43 thereofopposite the inner end of the feeding device so that the spring a maywithdraw the acting end of the feeding device momentarily from contactwith the heel, which is then yet clamped. During this upward movement ofthe leg B the lever C is turned in the direction of the arrow thereon,in Fig. 1, thus freeing the feeding device that it may return to itsstarting position under the continued action of the spring a The feedingdevice having returned to its starting position the leg B is depressedcausing the cam member 43 thereof in its descent to act upon the rearend of the feedingdevice and put its front end against the heel, theheelbeing yet clamped, but as soon as the feeding device meets the heel thelatter is unclamped so that the operator with his hand upon the shoe mayby pressing the heel against the acting end of the feeding device pushsaid device against the stress of the springs or and 1.5, the follower fentering at such times one of the open spaces in the pattern cam, as faras permitted by the adjustable stud 5. When the feeding device has beenmoved inwardly until stopped by the stud 5 it occupies its secondoperative position, viz ':the position to insure the insertion of afastening in the inner row of fastenings, said fastening being driven asherein provided for while the crank pin A completes a half rotationfromthe po-. sition Fig. 1, and during the succeeding half rotation thelever C is moved in the direction opposite the arrow on it in Fig. 1,thus feeding the stock.

The pawl b has extended from it a pin 25, shown in the detail Fig. 5,which engages one tooth d after another of the pattern cam D, turningsaid cam intermittingly step by step, a suitable spring 26 connectedwith said pawl and also with the stud 3 on the block a, normally actingto keep said pawl in operative position with relation to the teeth ofthe pattern cam.

It is usually desired when starting to insert fastenings in a heel, todrive the first fastening in the outer row and if the previous operationof the machine has consisted in driving a fastening in the outer row,difficulty will be experienced, unless means are provided whereby thepattern cam may be moved by hand whenever desired to put it intoposition to cause the first fastening to be driven in the outer row. Themeans herein shown consists of a hooked rod 26 connected at one end withan arm 27 of a rock-shaft 28, said rock-shaft having a second arm 29suitably slotted to receive a projection at one end of arod 30 mountedin guiding cars 31 and having a handle 32 which may be engaged by theoperator to pull the rod outwardly, and thereby cause said rod 26 toengage one of the teeth (Z of the pattern cam, turn it, and place thehigh part dof the cam in position to act upon the end of the follower,said rod 30, as soon as the operator removes his hand therefrom, beingmoved by a returning spring 10 surrounding it, thus returning the hookedrod 26 to its initial position. It is obvious that this device may beoperated to cause the first fastening to be driven in the inner row, ifpreferred.

To prevent any backward movement of Ice .tooth, so that the pawl b inits descent to engage a second tooth-cannot under any circumstances turnthe cam backwardly with it.

It will be noticed, see Fig. 2, that that portion of the follower whichis acted upon by the projections d of the cam is beveledin order thatthe cam portions d in coming into their operative position will notstrike a hard blow on the follower.

The machine with which my improved feeding device is herein illustratedand described will have suitable gripping devices to grip and feed thewire or fastening material that its end may be made to enter the heel orother part to be operated upon, but my invention for controlling theposition of the feedingdevice to insure a plurality of differentpositions for the heel, that fastenings may be driven therein in two ormore rows, may, it will be obvious, be employed to advantage inconnection with a machine having any usual or suitable wire-feeding andfastening inserting mechanism.

I have shown the teeth of the feeding device as formed in a block Bapplied to the bar B by means of a screw 30, entering a threaded hole 30in said device, said screw passing through a slot 45, see Fig. 4, in theblock B, said. block also having preferably suitable guiding studs 38which enter slots 39 in the feeding device, to thereby prevent anyoscillation. of the removable end pieces B on or with relation to thebody of the feeding device.

Figs. 1 and 2 represent, as stated, the feeding device in the positionit occupies after feeding the stock and after having inserted afastening in the outer row of fastenings, the end of the follower f insuch position resting against one of the high parts d of the patterncam. Now to insure the driving of the next fastening in the inner rowthe heel must be moved to the left, viewing Fig. a, in order that thepart of the shoe in which the inner row of fastenings is to be drivenmay come into the position occupied by the outer row of fastenings insaid figure, but before this can be effected the pattern cam must beturned to let the follower enter one of the spaces d thereof, and thelever C must be turned to release the feeding device and let it returnto its starting position. Also the leg B must be lifted and be againdepressed, and this will be done while the shoe is clamped. The actingend of the feeding device having been brought in contact with the heel,the stock being then unclamped,

the operator will push, as stated, the shoe and the feeding devicebackwardly toward the pattern cam a distance determined by the positionof the eccentric stud 5, and thereafter the fastening will be insertedin the position or line demanded for the inner row of fastenings.

The pattern cam is represented as having two full portions and twospaces, each occupying proper portions of said cam, that the I may allcome into operative position in one full rotation of the pattern cam,such a pattern cam providing for inserting fastenings in two rows, eachrow being a counterpart of the other with the exception that thefastenings in one row are preferably staggered with relation to thefastenings of another row, or the fastenings of the inner row arespaced, it may be, equi-distant between the fastenings of the outer row,and vice versa, such driving of the fastenings in two rows and staggeredadding very materially to the appearance of the tread end of the heel.It will be obvious that while the cam herein shown presents two faces,that no invention would be required to so construct the cam portion (1as to make of it two cams each presenting a face occupying differentdistances from the longitudinal central line of the cam, each facecontrolling one row of fastenings, the spaces controlling a third row,so the invention is not limited to the shape shown for the pattern cam,nor to the number of its high and low points, nor to the devicesrepresented for imparting to the said cam a step by step rotation andperiods of rest.

I have herein shown the fastening wire as quadrilateral incross-section, but this invention is of course not limited to theparticular shape shown of the fastening wire, and it may be of any usualor suitable shape commonly employed in the manufacture of boots andshoes.

Having described my invention, what .l claim as new and desire to secureby Letters Patent, is

1. A machine to drive fastenings, comprising a stock support, means toinsert fastenings, a feeding device, means to actuate the feeding deviceto feed the stock laterally, said feeding device being movablebackwardly and forwardly, means to determine the rearmost position ofsaid feeding device, and means acting intermittently to move the feedingdevice forwardly whereby the stock may be put in position to receivefastenings alternately in different rows.

2. In a machine for inserting fastenings, a feeding device, mechanism tomove the feeding device forward to engage the stock, and independentmeans normally inoperative and arranged to co-operate with said mechanism to permit the stock to be so placed that the initial insertion ofa fastening shall occur,

at the will of the operator, in any one of a plurality of predeterminedpositions relative to the edge of the stock.

'3 In a machine of the class described, fastemng inserting mechanism, adevice to con tact with the edge of the stock and feed it, yieldingmeans to force said feeding device toward the operator, stops todetermine the posltion of said device as the operator presses it backwith the stock, and means controlling the operation of said stopswhereby the shoe may be positioned to receive the fastenings alternatelyin different rows.

4. In a machine of the class described, a feeding device, a pattern cam,means to operate it, a cam leg, a follower engaged by said. leg andco-acting with said cam to change the position of said leg and feedingdevice and provide for the insertion into the stock of fastenings'atdifferent distances from the edge thereof.

5. In a machine of the class described, a feeding device, a pattern cam,means to operate it, a cam leg, a follower engaged by said leg andco-acting with said cam to change the position of said leg and feedingdevice and provide for the insertion into the stock of fastenings atdifferent distances from the edge thereof, and means to actuate saidfeeding device to move the stock and space the fastenings at the properdistances apart along the edge of the stock. 7

6. In a machine of the class described, a feeding device, a pattern cam,means to move it, a cam leg acting upon the inner end of said feedingdevice, and. means to control the position of said cam leg with relationto the center of said pattern cam to thereby place the acting end of thefeeding device alternately in different operative positions.

7. In a machine of the class described, a feeding device, a pattern cam,a follower actuated by said pattern cam, and a cam device interposedbetween the feeding device and the follower.

8. In a machine of the class described, a feeding device, a pattern cam,a follower actuated by said pattern cam, and a cam device interposedbetween the feeding device and the follower, combined with a springacting normally to move the feeding device toward the center of thepattern cam.

9. In a machine of the class described, a feeding device, a pattern cam,a follower actuated by said pattern cam, and a cam device interposedbetween the inner end of the feeding device and the follower, combinedwith a spring acting normally to move the feeding device toward thecenter of the pattern cam, and a stop to control the extent of suchmovement of the feeding device.

10. In a machine of the class described, a pattern cam, a feedingdevice, a leg having a member provided with a cam, and adapted in itsmovements to permit the feeding device to retire from contact with theshoe heel preparatory to the return of said feeding device into itsstarting position, means intermediate said leg and said pattern cam toinsure two operative positions for said leg to thereby insure twooperative positions for the acting end of said feeding device.

11. In a machine of the class described, a

feeding device, in combination with a pattern cam for determining theoperative positions of said feeding device, means for actuating thepattern cam, and a spring for moving the feeding device away from thepattern cam while the latter is being actuated, said spring permittingthe feeding device to be forced toward the pattern cam by the pressureof the work against it.

12. In a machine of the class described, a feeding device, meansdetermining the operative positions of the acting end of said feedingdevice, said means comprisingamong its parts a cam leg, a springconnected with said leg for yieldingly holding it in one operativeposition, combined with a second spring connecting said feeding devicewith said leg.

13. In a machine of the class described, a feeding device, a patterncam, means to move it to put the acting end of the feeding device in anyone of a plurality of operative positions, and means to adjustablysupport said pattern cam.

14. In a machine of the class described, a feeding device, a patterncam, a follower, a spring acting normally to put said follower out ofthe range of movement of the said pattern cam and thereby place the endof the feeding device in its normal position to insure the insertion ofa fastening in a row nearest the edge of the stock, a device interposedbe tween said follower and the inner end of the feeding device, and astop to limit the extent of backward movement of the feeding device bythe operator pressing the stock against the acting end of said feedingdevice.

15. In a machine of the class described, a feeding device, a patterncam, actuating means to operate it intermittingly to change theoperative position of the acting end of the feeding device, and a deviceunder the control of the operator to turn said pattern cam independentlyof its actuating means.

16. In a machine for inserting fastenings,

the combination with means for inserting fastenings alternately indifferent rows, of means co-operating with said first-named means fordetermining the row in which the initial insertion shall be made.

17. In a machine for inserting fastenings, the combination with meansfor inserting fastenings, of means for causing the fastenings to beinserted alternately in different rows, and means for controlling thelast -named means whereby the'initial insertion of a fas- IO to therearward movement of the feeding device whereby the lastenings may heinserted alternately 1n dill'erent rows.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

CHARLES H. SM I'l I'I.

WVitnesses HOMER W. IIERVEY, E. A. TRIPP.

